Theory of Multipole Fluctuation Mediated Superconductivity and Multipole Phase(Springer Theses)

多极波动介导的超导与多极相理论:许多体效应与强自旋轨道耦合的重要作用

凝聚态物理学

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作      者
出  版 社
出版时间
2022年05月19日
装      帧
平装
ISBN
9789811610288
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页      码
118
开      本
9.21 x 6.14 x 0.30
语      种
英文
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图书简介
A strong spin-orbit interaction and Coulomb repulsion featuring strongly correlated d- and f-electron systems lead to various exotic phase transition including unconventional superconductivity and magnetic multipole order. However, their microscopic origins are long standing problem since they could not be explained based on conventional Migdal-Eliashberg theorem.The book focuses on many-body correlation effects beyond conventional theory for the d- and f-electron systems, and theoretically demonstrates the correlations to play significant roles in “mode-coupling” among multiple quantum fluctuations, which is called U-VC here. The following key findings are described in-depth: (i) spin triplet superconductivity caused by U-VC, (ii) being more important U-VC in f-electron systems due to magnetic multipole degrees of freedom induced by a spin-orbit interaction, and (iii) s-wave superconductivity stabilized cooperatively by antiferromagnetic fluctuations and electron-phonon interaction contrary to conventional understanding. The book provides meaningful step for revealing essential roles of many-body effects behind long standing problems in strongly correlated materials.
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